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I think I killed my pump

post #1 of 10
9/28/12 at 4:02am
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I had my MCP655 lying on its side ,so water exited to the left, and yesterday I was tilting my case to try and move some air bubbles out of the pump when the pump started making loud noises , like the spinning part was hitting the chassis of the pump.

I immediately shut it down,of course. My question is, did me running it on its side kill it, or tilting it, or was it just its time? It was about 5 years old.

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post #2 of 10
9/28/12 at 4:18am
You can't harm these pumps as are held in place by strong magnets, the operation is that the housing and the impeller never come into contact with each other. It's likely the pump was already on it's way out, if the magnets moved even slightly this might explain what happened.

I remember when I first turned my pump on it's side to remove air bubbles, nothing happened. Five years is average for these pumps, sure some last longer.
Edited by Systemlord - 9/28/12 at 4:21am
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post #3 of 10
9/28/12 at 5:17am
Your pump is totally fine. The impeller is like a mag-lev, it rides on a sphereical ceramic ball. When tilting the pump, the impeller did a lean-to causing the top plastic part to run against the inside of the volute top. With that said, just tilt the case back to normal postion and run your loop.

Sure, the impeller magnets keep the impeller mostly level while the pump is running. When the pump is not running, the flux field is off and the impeller sags to the gravity direction since the impeller sits on a ball. So, when you turn on the pump, a slight noise may occur as the flux field energizes and the impeller corrects itself.

The impellers are durable, so the pump isn't toast nor on it's way out.
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post #4 of 10
9/28/12 at 5:25am
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So it didn't sound like it just had air in it? 655's are loud and annoying with any air in them.
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post #5 of 10
9/28/12 at 6:29am
It's very unlikely that titling your pump would have killed it. Many people tilt, turn, shake, and jiggle their systems around during the bleeding process and it never results in killing pumps. If possible I would recommend draining the loop, taking the loop apart, and giving the parts a good visual inspection. Post up pictures if you aren't sure what you are looking at or if you need help.
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post #6 of 10
9/28/12 at 7:27am
When i tilt my case my pump makes a loud, LOUD noise, and then i see a million bubbles run through my loop, I thought it was broken until i saw a million bubbles the first time.
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post #7 of 10
9/28/12 at 7:30am
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Yeah, thing is obnoxiously loud if there is any air in it, lol.
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post #8 of 10
9/30/12 at 6:15am
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Yeah, it's definitely dead. I took it apart yesterday, and the center part that spins around (impeller) is contacting the outside cup part. There's definite wear marks. I tried to spin it up again, and you can hear the impeller impacting the side of the cup.

Time for a new pump! Maybe one of the magnets failed or something.
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post #9 of 10
10/3/12 at 8:34pm
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Here are the pics of the inside of the pump, if anyone cares.

iIsoAl.jpg

JHkbfl.jpg
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post #10 of 10
10/3/12 at 8:45pm
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You must live close to either the North or South pole.What we are seeing here is the first indication that the Earths poles are getting ready to switch.We can all start our "end of times" plan. Really I do wonder what part wore so much to allow this contact.I am also suprised that this level of marking indicates an inop pump.If you have nothing to lose how about a polish job and then make really sure no air in the loop.
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